Dana M275 14-Bolt Heavy-Duty Cast Aluminum Rear Differential Cover (Black)

Features:

• Fits 2017–2025 Ford Super Duty M275 axle
• Durable black powder-coated aluminum finish
  
• Increases fluid capacity by 0.8 quart
• Made from A356.0-T6 heat-treated aluminum
• Half-inch fins improve heat dissipation
• Internal scrapers reduce fluid foaming
• Cross-bracing design adds structural strength
• Cast-in gussets reinforce flange support
• Magnetic plugs trap metal wear particles
• Viton O-rings provide high-temp sealing
• Precision-cast for accurate fit and finish
• OEM reference number Ford LC3Z4033D

Give Your Rear End A Serious Upgrade In Style And Strength

If your Super Duty sees serious work or weekend adventures, it deserves protection that goes beyond the factory basics. The PPE Dana M275 Heavy-Duty Rear Differential Cover in black and silver is built to handle the heat, pressure, and abuse that comes with real-world driving. Whether you're towing a fifth-wheel, hauling heavy loads, or just logging highway miles, this cover gives your rear differential the added cooling and durability it needs to perform at its best. Cast from A356.0-T6 heat-treated aluminum and finished in a bold two-tone color scheme, it adds both rugged function and standout style to your undercarriage. The increased fluid capacity and deep cooling fins help keep temps down, which means longer oil life and better protection for your gears and clutch packs. It's not just about keeping things cooler, this cover also brings peace of mind when you're pushing your truck harder than the average driver. If you're ready to upgrade your drivetrain protection without sacrificing looks, this cover checks all the boxes.

Built To Reinforce Your Axle And Control Heat

The PPE 338052020 differential cover is engineered for strength, cooling efficiency, and a precise fit on Dana M275 axles found in 2017–2025 Ford F250 and F350 trucks. The precision-cast A356.0-T6 aluminum body offers improved heat conductivity over stock stamped covers, and its added 0.8 quart capacity helps buffer thermal spikes under heavy load. Half-inch external cooling fins are built into the housing to pull heat away from the fluid more efficiently, while internal windage scrapers minimize churning and aeration that can lead to heat buildup and power loss. These components also reinforce the structure by forming a cross-bracing effect that strengthens the entire differential housing. Cast-in gussets around the flange further support sealing surfaces and help prevent flex under extreme conditions. Magnetic stainless plugs collect metal particles from the fluid before they can circulate through your gear set, and high-temp Viton O-rings ensure a tight seal that holds up under pressure. Every element of this cover is built to serve a purpose, whether you're off-road, on the jobsite, or pulling uphill with a heavy trailer.

Fits: 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 Ford F250/F350 Super Duty

Notes:

• Designed specifically for Dana M275 14-bolt rear axles
• Fits 2017–2025 Ford F250 and F350 Super Duty models
• Not compatible with Dana M300 or M315 axles
• California Prop 65 label 
• All three axle types use 14 bolts but differ in gear size
• Verify ring gear size before ordering to ensure proper fit
• Two-tone black and silver finish offers custom styling
• Ideal for trucks used in towing, hauling, or heavy-duty work
• Added fluid capacity helps manage heat under load
• Windage scrapers reduce fluid aeration and parasitic loss
• Cooling fins and cross-bracing improve housing strength
• Includes magnetic drain and fill plugs for metal filtration
• OEM part reference number: Ford LC3Z4033D

Install Instructions